JK358H/D crawler-type down-hole drill adopts diesel motor(electric motor). Hydraulic oil pump unit offers power to hydraulic motor moving ,turn-around,propulsion and lifting ,and angle orientation of oil cylinder,etc.When drill is working,only  the down-hole hammer consumes the compressed air.Compared with whole-pneumatic drills,the consumption of energy (fuel or electricity) is saved by 40% to 50% .
The JK358H/D crawler hydraulic down-hole drill is mainly used in stonework drilling ,such as water and electricity project,exploitation of open mine and road construction.

JK358H Main technical parameters

Drilling diameter	Φ90-Φ165mm
Drilling depth	40m
Moving speed	2km/h
Adapt to rock hardness	ｆ=6—20
Working air pressure	1.2—2.4MPa
Pipe-rod changing length	3m
Outer size(length×width×height)	6900×2200×2200 (transportation state)
Gradeability	24°
machine power	Internanl combustion 70KW     Electric 30KW
Weight	6100kg